The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 10, 1987

Filed:

Oct. 19, 1984
Applicant:
Inventors:

Mircea S Stanescu, Pluckemin, NJ (US);

David J Weinstein, Livingston, NJ (US);

Cornelius W Cornelssen, Edison, NJ (US);

Assignee:

The BOC Group, Inc., Montvale, NJ (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148 16 ; 148 166 ;
Abstract

Soot deposition from protective atmospheres and residual lubricants normally carried on ferrous wire and removed during annealing. During the cooling stage of an annealing cycle, air or other suitable oxygen containing gas is introduced into an annealing furnace containing the wire when the wire temperature is between approximately 1050.degree. and 950.degree. F. At these temperatures, the introduced oxygen is effective to volatilize the residual lubricant and soot formed from decomposition of carbon monoxide. This removal is accomplished without significant decarburization of the wire and only minor oxidation thereof. The oxygen containing gas may be introduced into a bell furnace by raising the inner cover thereof or the oxygen containing gas may be injected into the inner retort of a bell furnace or directly into a batch furnace.


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